CN210787775U

CN210787775U - Multi-stage disc type sedimentation separator

Info

Publication number: CN210787775U
Application number: CN201921061090.XU
Authority: CN
Inventors: 沈智奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-06-19
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to a multistage dish formula settlement separation machine, including the frame, be provided with the casing in the frame, be provided with in the casing and subside a section of thick bamboo and the synchronous solid-liquid separation of multistage rotary drum and continuous slag discharging system, it includes inclosed subsides a section of thick bamboo, subsides the coaxial rotary drum assembly that forms that is provided with multistage rotary drum stack of a section of thick bamboo inner chamber, the rotary drum assembly is fixed on the hollow shaft and follows by driving motor driven hollow shaft at the casing internal rotation, and the rotary drum assembly is treated separating former sewage step by step and is carried out solid-liquid centrifugal separation, and the rotary drum assembly area subsides a section of thick bamboo and carries out secondary solid-liquid centrifugal separation in step, the utility model discloses still include that former sewage is row's slag discharging system and a section of thick bamboo in succession subsides secondary timing slag discharging system. Is an updating device for sewage treatment in the industries such as the vast breeding industry, sewage treatment plants and the like.

Description

Multi-stage disc type sedimentation separator

Technical Field

The technology relates to a solid-liquid separation technology, which is used as a solid-liquid separator and belongs to the technical field of sewage treatment.

Background

The disc centrifugal separator on the market at present separates the solid and liquid in the rotary drum by the centrifugal force generated by the ultra-high speed operation of the disc in the rotary drum, and the sediment in the rotary drum is accumulated to a certain height in the sediment tank space and then is subjected to timed sediment removal by a complex sediment removal device, and the structure design has the following defects: firstly, because the rotating speed of the machine is almost all over 6000 rpm and the machine runs at a super high speed, the structure stability of the whole machine body is poor, the requirement on the design and manufacturing precision is high, the manufacturing difficulty is high, and the cost is high; secondly, because the drum disc belongs to a single-stage direct-current design from bottom to top, the centrifugal separation time of the treated liquid contacting the disc is short when the treated liquid flows out from the lower end to the upper end of the disc, and the solid-liquid separation efficiency is low; thirdly, after the sediment in the sediment tank is accumulated to a certain height, regularly discharging the sediment through a complex slag discharging device; fourthly, the water content of the discharged sediment is very high.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide a multi-stage disc-type sedimentation separator, which solves the above disadvantages of the existing disc-type centrifugal machine in the market, such as high rotation speed, complex manufacturing, high precision, high investment cost, low solid-liquid separation efficiency, complex slag discharging device, and high moisture content of discharged sediment.

In order to achieve the purpose, the invention adopts the following technical scheme:

a multi-stage disc type sedimentation separator comprises a frame, wherein a shell is arranged on the frame, an upper end cover is arranged at the upper end of the shell, an upper bearing seat and a bracket are arranged on the upper end cover, and a motor and a belt transmission device are arranged on the bracket; a sedimentation cylinder is arranged in the shell, and a drum assembly, a drum assembly primary solid-liquid separation, water inlet, water drainage and slag discharge system and a sedimentation cylinder synchronous secondary solid-liquid separation, water drainage and slag discharge system are arranged in the sedimentation cylinder; the synchronous solid-liquid separation water inlet and drainage system of the rotary drum assembly and the sedimentation cylinder comprises a closed sedimentation cylinder, rotary drum assemblies are coaxially arranged in an inner cavity of the sedimentation cylinder and are fixed with each other, a cavity is arranged between the sedimentation cylinder and the rotary drum assemblies, and the sewage inlet mechanism inputs original sewage to be separated into the cavities of all discs in the rotary drum assembly; the rotary drum assembly is fixed on the hollow shaft and is driven by the hollow shaft to rotate in the shell, the rotary drum assembly performs primary solid-liquid separation on sewage input into an inner cavity of the rotary drum assembly, and separated sediments flow into the settling cylinder to perform secondary solid-liquid separation.

Furthermore, the upper section of the shell arranged on the rack is a cylindrical pipe, the lower section of the shell is a conical pipe with a large upper part and a small lower part, the upper end of the upper section of the shell is provided with a first outer flange, the lower end of the shell is provided with a lower end cover, the center of the lower end cover is provided with a second central hole, and the cylinder wall of the lower end of the shell is provided with a drain hole; the settling cylinder is arranged in the casing, the upper section of the settling cylinder is a cylindrical pipe, the lower section of the settling cylinder is a conical pipe with a large upper part and a small lower part, the upper end of the upper section of the settling cylinder is provided with an inner flange and is mutually fixedly connected with an outer flange arranged at the upper end of the top-level rotary drum, the lower end of the settling cylinder is provided with a slag discharging pipe with a diameter larger than that of the hollow shaft, the position of the hollow shaft corresponding to the slag discharging pipe is provided with a shaft sleeve with a diameter larger than that of the hollow shaft, a plurality of supporting plates are arranged between the shaft sleeve and the slag discharging pipe, the inner end of each supporting plate is mutually fixedly connected with the shaft sleeve, the outer.

The water inlet system comprises a hollow shaft and an upper bearing seat communicated and connected with the hollow shaft, wherein a water inlet hole I and a water inlet pipe are arranged on the upper bearing seat, a plurality of water inlet holes II are arranged at the central hollow shaft and the position corresponding to the water inlet holes, a plurality of water inlet holes III are arranged at the upper position of a bottom disc of the bottom-stage rotary drum at the middle section of the hollow shaft, and water inlets are arranged at the lower ends of the discs in the rotary drums at all stages.

Still further, the drainage and deslagging system is divided into an upper drainage and deslagging system and a lower drainage and deslagging system: the upper drainage system comprises that the upper ends of discs in the rotary drums at all levels are provided with water outlets, the upper end of the center of the top rotary drum is provided with a flow guide pipe, the upper end of the flow guide pipe upwards penetrates through the third sealing device and extends into the upper bearing seat to be communicated and connected, the lower side wall of the upper bearing seat is provided with a first water outlet hole and an upper water outlet pipe fixedly connected with the first water outlet hole, and the outer sleeve of each rotary drum at all levels is provided with a plurality of slag outlet; the lower drainage system comprises a hollow shaft at the lower end of the bottom-stage rotary drum, wherein a plurality of water outlet holes II are formed in the hollow shaft, the lower end port of the hollow shaft is arranged in a lower bearing seat with a sealing device, the side wall of the lower end of the lower bearing seat is provided with a water outlet hole III and a lower water outlet pipe fixedly connected with the water outlet hole III, and a control valve II is arranged on the lower water outlet pipe; the lower slag discharging system comprises a slag discharging pipe arranged at the lower end of the settling barrel, the slag discharging pipe penetrates through the sealing device IV downwards and extends into the lower bearing seat, a slag discharging hole is formed in the side wall of the lower bearing seat, a slag discharging pipe fixedly connected with the slag discharging hole is arranged outside the slag discharging hole, and a first control valve is arranged on the slag discharging pipe.

And furthermore, a drum assembly is arranged in the settling cylinder, and the drum assembly is formed by stacking a bottom-stage drum, one or more middle-stage drums and a top-stage drum stage by stage.

Still further, the middle-stage rotary drum is composed of an outer sleeve with a diameter smaller than that of the cylindrical tube of the sedimentation cylinder, a lower disc, a flow guide disc, one to a plurality of middle discs, an upper disc, a slag blocking tube and an inner sleeve with a diameter larger than that of the hollow shaft, the inner sleeve and the outer sleeve are arranged in the same length, the horizontal height of the inner sleeve is about 30-45 degrees higher than that of the outer sleeve, a plurality of water outlets are arranged at the upper end of the lower disc and fixed on the lower end of the inner sleeve, the lower end of the lower disc is fixed on the lower end of the outer sleeve, the slag blocking tube is arranged on the lower section of the lower disc and is a conical tube with a larger upper part and a smaller lower part, a slag inlet with a certain width away from the outer sleeve is arranged at the upper end of the slag blocking tube, the lower end of the slag blocking tube is fixed on the lower disc, a slag settling, the lower end of the flow guide disc is provided with a plurality of water inlets which are fixed on the slag blocking pipe together, the upper end of the flow guide disc is fixed on the inner sleeve, the middle disc is arranged above the flow guide disc in parallel at a certain distance, the lower end of the middle disc is provided with a plurality of water inlets II which are fixed on the slag blocking pipe, the upper end of the middle disc is provided with a plurality of water outlets II which are fixedly connected with the inner sleeve, the upper part of the middle disc is provided with an upper disc which is arranged above the middle disc in parallel at a certain distance, the lower end of the upper disc is provided with a plurality of water inlets III.

The bottom-stage rotary drum is arranged below the middle-stage rotary drum, the bottom disc replaces a lower disc in the middle-stage rotary drum and is provided with a plurality of upper water outlets I, a plurality of water inlets III communicated with the hollow shaft are arranged on an inner sleeve between the upper end of the bottom disc and the upper flow guide disc, and the bottom-stage rotary drum has the same design as the middle-stage rotary drum except that the structures are different from the structure of the middle-stage rotary drum; the top-level rotary drum is arranged above the middle-level rotary drum, a top disc in the top-level rotary drum replaces an upper disc in the middle-level rotary drum, a plurality of water inlets III are not arranged, a flow guide pipe with the diameter larger than that of the inner sleeve pipe is arranged above a top layer water outlet at the upper end of the top disc, the lower end of the flow guide pipe is fixed on the top disc, and the top-level rotary drum is identical to the middle-level rotary drum in structure except that the structure arrangement of the top-level rotary drum is different from that of the.

Further, an upper end cover with a first central hole is arranged above the casing and fixedly connected with each other through an outer flange and a bolt, an upper bearing seat is arranged on the upper end cover and fixedly connected with each other through the bolt, an upper bearing, a first sealing device, a second sealing device and a third sealing device are arranged in the upper bearing seat from top to bottom, a first water inlet hole is arranged on the side wall of the upper bearing seat in the space between the first sealing device and the second sealing device, a water inlet pipe is arranged on the outer wall of the first water inlet hole and fixedly connected with the outer wall, a first water outlet hole is arranged on the side wall of the upper bearing seat in the space between the second sealing device and the third sealing device, a first water outlet pipe is arranged on the outer wall of the first water outlet hole and fixedly connected with the outer wall, a bearing cover is additionally arranged at the upper end of the upper bearing seat, a support is arranged above the, the motor is provided with a large belt pulley fixed on a main shaft, a lower bearing seat is arranged below a lower end cover of the lower end of the shell and fixedly connected with the lower bearing seat through an outer flange three-purpose bolt, a sealing device IV, a sealing device V, a lower bearing and a sealing device VI are arranged in the lower bearing seat from top to bottom, a slag discharging hole is formed in the side wall of the lower bearing seat between the sealing device IV and the sealing device V, a slag discharging pipe is arranged on the outer wall of the slag discharging hole and fixed with the outer wall, a control valve I is arranged on the slag discharging pipe, a water outlet hole III is arranged on the side wall of the lower end of the lower bearing seat, a lower water outlet pipe is arranged on the outer.

Still further, a rack is arranged below an outer flange at the upper end of the machine shell at a certain interval, a lower support frame is arranged below an outer flange III at the upper end of a lower bearing seat at the lower end of the machine shell in the rack at a certain interval, the periphery of the lower support frame is fixedly connected with the rack, a plurality of uniformly distributed upper vibration absorbers are arranged between the upper end surface of the rack and the outer flange I, the upper ends of the upper vibration absorbers are fixed on the outer flange I through bolts, the lower ends of the upper vibration absorbers are fixed on the rack through bolts, a plurality of uniformly distributed lower vibration absorbers are arranged between the lower support frame and the outer flange III, the upper ends of the lower vibration absorbers are fixed on the outer flange III through bolts.

The hollow shaft is arranged in the center of the rotary drum assembly, a plug is arranged at the top end of the hollow shaft, the upper end of the hollow shaft upwards penetrates through the top-stage rotary drum for a certain length and is mutually fixed on each inner sleeve of the center of the rotary drum assembly by a flat key, then the hollow shaft at the upper end upwards sequentially penetrates through the sealing device II, the sealing device I, the upper bearing and the bearing cover from the upper bearing seat, small belt pulleys which are mutually fixed are arranged at the top end of the hollow shaft, a belt is used for driving the small belt pulleys to rotate through a motor on the large belt pulley, a plurality of water inlet holes I are arranged on the hollow shaft between the sealing device I and the sealing device II, a water inlet hole III which is communicated with the hollow shaft is arranged at the position of the water inlet hole III arranged on the inner sleeve at the upper end of the bottom disc of the bottom-stage rotary drum, and the fifth sealing device, the sixth sealing device and the lower bearing finally enter the lower inner cavity of the lower bearing seat.

Advantageous effects

The multi-stage disc type sedimentation separator provided by the invention overcomes the defects that the existing disc type separator can not continuously and timely discharge slag, the stagnation time of the separated original solid and liquid between discs is short, the separation efficiency is poor, and in addition, the whole machine needs ultra-high speed operation, the manufacturing requirement precision of a prototype is high, the structure is complex, and the investment cost is high. The invention has the advantages that the design of the running rotating speed is greatly lower than that of the existing disc separator, the separated solid-liquid can be greatly improved in the solid-liquid separation quality from bottom to top in the rotary drum assembly, the detention time between discs in the multi-stage rotary drum is long, the separation efficiency is high, the raw liquid to be separated is subjected to primary solid-liquid separation and continuous drainage and slag discharge through the rotary drum rotating at high speed, then the continuously discharged slag flows downwards into the settling cylinder, secondary solid-liquid separation is performed on the inflowing slag through the settling cylinder rotating at high speed synchronously, the separated water after the secondary separation can be continuously discharged out of the machine, the slag after the secondary separation can be discharged out of the machine at fixed time, when the discharge control valve II of the secondary separated water of the settling cylinder is closed, the water pressure in the settling cylinder is the same as the water pressure between the discs in the rotary drum assembly, when the slag tank in the rotary drum is required to discharge the slag, the control valve II can be relatively properly, at this time, as long as the control valve II is opened to discharge secondary separation water, the water pressure in the sedimentation cylinder can be immediately reduced along with the secondary separation water flowing out, the water flowing out is large, the water flowing out is small, when the water pressure in the sedimentation cylinder is reduced, the balance water pressure between the original rotary drum and the sedimentation cylinder is correspondingly changed to cause a water pressure state with a high inside and a low outside, at the moment, the separated water in the rotary drum can extrude sediment centrifugally sedimented in a sediment pool out of the rotary drum from each slag outlet hole and flow into the sedimentation cylinder, at the moment, the lower water outlet pipe discharges much water, how much sediment is discharged into the rotary drum and enters the sedimentation cylinder, when the water discharge amount of the lower water outlet pipe of the control valve II is controlled to the sediment discharge amount in the rotary drum, the effects of continuous sediment discharge of the rotary drum and continuous water discharge of the upper and lower water discharge pipes can be achieved, and when the sediment in the sedimentation cylinder is stacked to a set height, the control valve is opened at a fixed time to discharge the sediment out of the machine from the sediment discharge pipe.

The invention has compact structure, high automatic control degree, high efficiency, energy saving and small occupied area, thereby saving a large amount of construction land area and investment operation cost, and being ideal sewage treatment upgrading equipment in the sewage treatment industries of the breeding industry, the sewage treatment plant and the like.

Drawings

The attached drawings are schematic sectional construction diagrams of the embodiment of the invention:

in the figure: 1. an upper plug, 2, an upper bearing, 3, a hollow shaft, 4, a first sealing device, 5, an upper bearing seat, 6, a second water inlet hole, 7, a second sealing device, 8, an upper water outlet pipe, 9, a first water outlet hole, 10, a third sealing device, 11, a first outer flange, 12, an upper end cover, 13, a first central hole, 14, a flow guide pipe, 15, a second outer flange, 16, an inner flange, 17, a top-stage rotary drum, 18, a third water inlet, 19, a middle-stage rotary drum, 20, a second water inlet, 21, an outer sleeve, 22, a slag outlet hole, 23, a machine shell, 24, a rotary drum assembly, 25, a settling cylinder, 26, a second central hole, 27, a lower end cover, 28, a third outer flange, 29, a fourth sealing device, 30, a slag outlet pipe, 31, a first control valve, 32, a slag outlet pipe, 33, a slag outlet hole, a lower bearing seat, 35, a third water outlet, 36, a machine frame, 37, a large, 40. the device comprises a motor 41, a water inlet pipe 42, a water inlet hole I, a water inlet hole 43, a support 44, a top layer water outlet 45, a top disc 46, an upper shock absorber 47, a water outlet III, a water outlet 48, an upper disc 49, a water outlet II, a water outlet 50, a middle disc 51, an inner sleeve 52, a flow guide disc 53, a water outlet I, a water outlet 54, a water inlet I, a water outlet 55, a slag blocking pipe 56, a slag settling tank 57, a lower disc 58, a water inlet hole III, a water inlet hole 59, a bottom stage rotary drum 60, a lower plug 61, a bottom disc 62, a water outlet hole II, a water outlet 63, a water outlet hole 64, a shaft sleeve 65, a support plate 66, a lower shock absorber 67, a sealing device V, a sealing device 68, a lower support, a 69, a lower bearing 70, a sealing device VI, 71, a control.

Detailed Description

Embodiments of the multistage disc settler separator of the present invention are described in detail below with reference to the attached drawings:

the invention discloses a multistage disc type sedimentation separator, which comprises a frame 36, wherein a shell 23 is arranged on the frame 36, an upper end cover 12 is arranged at the upper end of the shell 23, an upper bearing seat 5 and a bracket 43 are arranged on the upper end cover 12, and a motor 40 and a belt transmission device are arranged on the bracket 43; a sedimentation cylinder 25 is arranged in the casing 23, and a drum assembly 24 primary solid-liquid separation, water inlet, drainage and slag discharge system and a sedimentation cylinder 25 synchronous secondary solid-liquid separation, drainage and slag discharge system are arranged in the sedimentation cylinder 25; the synchronous solid-liquid separation water inlet and drainage system of the rotary drum assembly 24 and the sedimentation cylinder 25 comprises a closed sedimentation cylinder 25, the rotary drum assembly 24 is coaxially arranged in the inner cavity of the sedimentation cylinder 25 and fixed with each other, a cavity is arranged between the sedimentation cylinder 25 and the rotary drum assembly 24, and the sewage inlet mechanism inputs the raw sewage to be separated into the cavities of all discs in the rotary drum assembly 24; the drum assembly 24 is fixed on the hollow shaft 3 and is driven by the hollow shaft 3 to rotate in the casing 23, the drum assembly 24 carries out primary solid-liquid separation on sewage input into an inner cavity of the drum assembly, and separated sediments flow into the settling cylinder 25 to carry out secondary solid-liquid separation.

Further, the casing 23 disposed on the frame 36 has a cylindrical upper section, a tapered lower section, a first outer flange 11 fixed to each other at the upper end of the upper section, a second lower end cap 27 fixed to each other at the lower end of the upper section, a central hole 26 at the center of the lower end cap 27, and a drain hole 63 on the lower end cylinder wall; the settling cylinder 25 arranged in the casing 23 has a cylindrical upper section and a tapered lower section, the upper end of the settling cylinder is provided with an inner flange 16 fixed to each other and fixedly connected to an outer flange 15 arranged at the upper end of the top-stage rotary drum 17 by bolts, the lower end of the settling cylinder is provided with a slag discharging pipe 30 having a diameter larger than that of the hollow shaft 3 and fixedly connected to each other, a shaft sleeve 64 having a diameter larger than that of the hollow shaft 3 is arranged at a position of the hollow shaft 3 corresponding to the slag discharging pipe 30, a plurality of support plates 65 are arranged between the shaft sleeve 64 and the slag discharging pipe 30, the inner ends of the support plates 65 are fixedly connected to the shaft sleeve 64, the outer ends of the support plates 65 are fixedly connected to the slag discharging pipe 30, and the lower end of the settling cylinder 25 is fixed to the hollow shaft.

Still further, the water inlet system comprises a hollow shaft 3 and an upper bearing seat 5 which is communicated and connected, wherein a water inlet hole I42 and a water inlet pipe 41 which is fixedly connected with the water inlet hole I42 are arranged on the upper bearing seat 5, a plurality of water inlet holes II 6 are arranged at the positions of the hollow shaft 3 at the center and the corresponding water inlet hole I42, a plurality of water inlet holes III 58 are arranged at the positions above a bottom disc 61 on a bottom-stage rotary drum 59 at the middle section of the hollow shaft 3, and the lower end of the disc in each stage of rotary drum is provided with a water.

Still further, the drainage and deslagging system is divided into an upper drainage and deslagging system and a lower drainage and deslagging system: the upper drainage system comprises that the upper ends of discs in the rotary drums at all levels are provided with water outlets, the upper end of the center of the top rotary drum 17 is provided with a drainage pipe 14, the upper end of the drainage pipe 14 upwards penetrates through a third sealing device 10 and extends into the upper bearing seat 5 to be communicated and connected, the lower side wall of the upper bearing seat 5 is provided with a water outlet hole I9 and an upper water outlet pipe 8 fixedly connected with the water outlet hole I, and the outer sleeve 21 of the rotary drums at all levels is provided with a plurality of slag outlet holes 22; the lower drainage system comprises a hollow shaft 3 at the lower end of the bottom-stage rotary drum 59, wherein a plurality of water outlet holes II 62 are formed in the hollow shaft 3, the lower port of the hollow shaft 3 is arranged in a lower bearing seat 34 with a sealing device, the side wall of the lower end of the lower bearing seat 34 is provided with a water outlet hole III 35 and a lower water outlet pipe 72 fixedly connected with the water outlet hole III, and a control valve II 71 is arranged on the lower water outlet pipe 72; the lower slag discharging system comprises a slag discharging pipe 30 arranged at the lower end of the settling barrel 25, the slag discharging pipe 30 penetrates through a sealing device IV 29 downwards and extends into a lower bearing seat 34, a slag discharging hole 33 is formed in the side wall of the lower bearing seat 34, slag discharging pipes 32 fixedly connected with each other are arranged outside the slag discharging hole 33, and a first control valve 31 is arranged on the slag discharging pipes 32.

Further, a drum assembly 24 is arranged in the settling cylinder 25, and the drum assembly 24 is formed by stacking a bottom-stage drum 59, one or more middle-stage drums 19 and a top-stage drum 17 step by step.

Still further, the middle-stage rotary drum 19 is composed of an outer sleeve 21 with a diameter smaller than that of the cylindrical pipe of the sedimentation cylinder 25, a lower disc 57, a flow guide disc 52, one or more middle discs 50, an upper disc 48, a slag blocking pipe 55 and an inner sleeve 51 with a diameter larger than that of the hollow shaft 3, the inner sleeve 51 is arranged with the same length as the outer sleeve 21, the inner sleeve 51 is arranged with a horizontal height about 30-45 degrees higher than that of the outer sleeve 21, the upper end of the lower disc 57 is provided with a plurality of water outlets 53 and fixed on the lower end of the inner sleeve 51, the lower end is fixed on the lower end of the outer sleeve 21, the lower section of the lower disc 57 is provided with the slag blocking pipe 55, the slag blocking pipe 55 is arranged into a large-lower small tapered pipe, the upper end of the slag blocking pipe 55 is provided with a slag inlet with a certain width from the outer sleeve 21, the lower end is fixed on the lower disc 57, a slag settling tank 56 is formed by the cavity, the upper part of the lower disc 57 is provided with a plurality of parallel flow guiding discs 52 at certain intervals, the lower end of each flow guiding disc 52 is provided with a plurality of water inlets 54 and is fixed on the slag blocking pipe 55, the upper end of each flow guiding disc 52 is fixed on the inner sleeve 51, one to a plurality of middle discs 50 are arranged above the flow guiding discs 52 at certain intervals in parallel, the lower end of each middle disc 50 is provided with a plurality of water inlets 20 and is fixed on the slag blocking pipe 55, the upper end of each middle disc 50 is provided with a plurality of water outlets 49 and is fixedly connected with the inner sleeve 51, the upper disc 48 is arranged above the middle disc 50 at certain intervals in parallel, the lower end of each upper disc 48 is provided with a plurality of water inlets 18 and is fixed on the outer sleeve 21.

Still further, the bottom-stage rotating drum 59 is arranged below the middle-stage rotating drum 19, a bottom disc 61 in the bottom-stage rotating drum 59 is provided with a plurality of upper water outlets one 53 instead of a lower disc 57 in the middle-stage rotating drum 19, a plurality of water inlets three 58 communicated with the hollow shaft 3 are arranged on the inner sleeve 51 between the upper end of the bottom disc 61 and the upper flow guide disc 52, and the bottom-stage rotating drum 59 has the same design as the middle-stage rotating drum 19 except that the structures are different from the structure of the middle-stage rotating drum 19; the top-stage rotary drum 17 is arranged above the middle-stage rotary drum 19, a top disc 45 in the top-stage rotary drum 17 replaces an upper disc 48 in the middle-stage rotary drum 19 and is provided with a plurality of water inlets III 18, a guide pipe 14 with the diameter larger than that of an inner sleeve 51 is arranged above a top layer water outlet 44 at the upper end of the top disc 45, the lower end of the guide pipe 14 is fixed on the top disc 45, and the top-stage rotary drum 17 has the same design as the middle-stage rotary drum 19 except that the structural arrangements are different from the middle-stage rotary drum 19.

Further, an upper end cover 12 provided with a central hole I13 is arranged above the casing 23 and fixedly connected with each other through an outer flange I11 by bolts, an upper bearing seat 5 is arranged on the upper end cover 12 and fixedly connected with each other through bolts, an upper bearing 2, a first sealing device 4, a second sealing device 7 and a third sealing device 10 are arranged in the upper bearing seat 5 from top to bottom, a first water inlet hole 42 is arranged on the side wall of the upper bearing seat 5 in the space between the first sealing device 4 and the second sealing device 7, a water inlet pipe 41 is arranged on the outer wall of the first water inlet hole 42 and fixedly connected with the outer wall, a first water outlet hole 9 is arranged on the side wall of the upper bearing seat 5 in the space between the second sealing device 7 and the third sealing device 10, an upper water outlet pipe 8 is arranged on the outer wall of the first water outlet hole 9 and fixedly connected with the outer wall, a bearing cover is further arranged at the upper end of the upper bearing seat, the bracket 43 is provided with a motor 40 which is fixedly connected with each other by bolts, the motor 40 is provided with a large belt pulley 37 fixed on the main shaft, a lower bearing seat 34 is arranged below a lower end cover 27 at the lower end of the machine shell 23 and fixedly connected with each other by bolts through an outer flange III 28, a sealing device IV 29 and a sealing device V67 are arranged in the lower bearing seat 34 from top to bottom, the lower bearing 69 and the six sealing devices 70, the side wall of the lower bearing seat 34 between the four sealing devices 29 and the five sealing devices 67 is provided with a slag discharge hole 33, the outer wall of the slag discharge hole 33 is provided with a slag discharge pipe 32 and fixedly connected with the outer wall, the slag discharge pipe 32 is provided with a first control valve 31, the side wall below the six sealing devices 70 in the lower bearing seat 34 is provided with a third water outlet hole 35, the outer wall of the third water outlet hole 35 is provided with a lower water outlet pipe 72 and fixedly connected with the outer wall, and the lower water outlet pipe 72 is provided with a second control valve 71.

Still further, a rack 36 is arranged below the outer flange one 11 at the upper end of the machine shell 23 at a certain interval, a lower support frame 68 is arranged below the outer flange three 28 at the upper end of the lower bearing seat 34 at the lower end of the machine shell 23 in the rack 36 at a certain interval, the periphery of the lower support frame 68 is fixedly connected with the rack 36, a plurality of upper vibration dampers 46 are uniformly arranged between the upper end surface of the rack 36 and the outer flange one 11, the upper ends of the upper vibration dampers 46 are fixed on the outer flange one 11 by bolts, the lower ends of the upper vibration dampers are fixed on the rack 36 by bolts, a plurality of lower vibration dampers 66 are uniformly arranged between the lower support frame 68 and the outer flange three 28, the upper ends of the lower vibration dampers 66 are fixed on the outer flange three 28 by bolts, and the.

Further, the hollow shaft 3 is arranged in the center of the rotary drum assembly 24, the top end of the hollow shaft 3 is provided with an upper plug 1, the upper end of the hollow shaft 3 upwards penetrates through the top-stage rotary drum 17 for a certain length and is mutually fixed on each inner sleeve 51 in the center of the rotary drum assembly 24 by a flat key, then the upper end of the hollow shaft 3 upwards sequentially penetrates through a sealing device II 7, a sealing device I4, an upper bearing 2 and a bearing cover from the inner part of the upper bearing seat 5, the top end of the hollow shaft is provided with a small belt pulley 39 which is mutually fixed and is driven to rotate by a belt 38 through a motor 40 on a large belt pulley 37, the hollow shaft 3 between the sealing device I4 and the sealing device II 7 is provided with a plurality of water inlet holes II 6, the hollow shaft 3 at the positions of water inlet holes III 58 arranged on the inner sleeve 51 at the upper end of a bottom disc 61 of the bottom-stage, the pipe wall below the lower plug 60 is provided with a plurality of water outlet holes II 62, and the lower end of the hollow shaft 3 sequentially penetrates through the shaft sleeve 64, the sealing device V67, the lower bearing 69 and the sealing device VI 70 and finally enters the lower inner cavity of the lower bearing seat 34.

The working principle and the working process are as follows:

during operation, the first control valve 31 and the second control valve 71 are closed, then the driving motor 40 and a sewage pump arranged outside the machine are started to enable raw sewage to be treated to be subjected to pre-coarse filtration and then enter the hollow shaft 3 from the water inlet pipe 41 through the first water inlet hole 42 and the second water inlet hole 6 to be conveyed downwards, then the raw sewage is input into a space between the bottom disc 61 and the deflector disc 52 in the bottom-stage rotary drum 59 from the third water inlet hole 58 to flow downwards to the slag blocking pipe 55, then the raw sewage flows into the inner cavity of the whole bottom-stage rotary drum 59 through the first water inlet 54 of the deflector disc 52, the second water inlet 20 of the middle disc 50 and the third water inlet 18 of the upper disc 48 to be filled, then solid-liquid centrifugal separation is carried out by various discs rotating at high speed, when the operation is started, the sewage in the rotary drum continuously flows into the inner cavity of the sedimentation drum 25 through the slag outlet holes 22 from various sedimentation tanks 56, the inflow of the sedimentation drum 25 is, the pressure of the sewage flowing out of the slag hole 22 at the edge of the rotary drum is higher than the pressure of the sewage in the rotary drum, and because the inner cavity of the settling drum 25 is closed, after the inner cavity of the settling drum 25 is filled with the sewage, the pressure of the sewage in the inner cavity is equal to the pressure of the sewage flowing out of each slag hole 22, so that when the rotary drum normally operates, after the inner cavity of the settling drum 25 is filled with the sewage, the sewage in the rotary drum does not flow into the inner cavity of the settling drum 25 any more, but when the control valve II 72 is opened to discharge the secondarily separated clean water, the pressure of the inner cavity of the settling drum 25 immediately drops to be lower than the pressure of the slag hole 22, then the sediment in the rotary drum continuously flows into the inner cavity of the settling drum 25 from the slag hole 22 through the sediment tank 56, and when the inner cavity of the complete machine settling drum 25 is filled with the sewage and normally operates, the sewage entering the inner cavity of the bottom-stage rotary drum 59 is subjected to centrifugal separation, and the separated clean water can flow from the, The space between the middle disc 50 and the upper disc 48 and the space between the upper disc 48 and the lower disc 57 in the upper stage rotary drum flow upwards into the middle stage rotary drum 19 from the respective water outlet two 49, the water outlet three 47 and the water outlet one 53 at the upper end, then further centrifugal separation is carried out according to the original mode, the separated purified water flows upwards into the top stage rotary drum 17 from the respective water outlet for final centrifugal separation, finally the separated purified water flows into the inner cavity of the upper bearing seat 5 from the top layer water outlet 44 of the top stage rotary drum 17 through the draft tube 14, and then is discharged out of the machine from the water outlet one 9 through the upper water outlet pipe 8.

When the sewage in the inner cavity of the sedimentation cylinder 25 is full of the sewage in the whole machine and normally runs, the rotary drum assembly 24 which is driven by the hollow shaft 3 to rotate at a high speed simultaneously drives the sewage in the sedimentation cylinder 25 to rotate at a high speed for solid-liquid separation, after the control valve II 71 is properly opened, the separated purified water flows into the hollow shaft 3 from the water outlet hole II 62 and flows downwards into the inner cavity of the lower bearing seat 34, and then flows into the lower water outlet pipe 72 from the water outlet hole III 35 to be discharged out of the machine, if the quality of the secondary separation water does not reach the standard, the separated purified water can be sent into a sewage pump for secondary treatment, when the control valve II 71 is opened and the purified water is discharged out of the machine, the pressure in the sedimentation cylinder 25 is correspondingly reduced, then the sediment in each sediment tank 56 in the rotary drum is discharged into the inner cavity of the rotary sedimentation cylinder 25 from each sediment hole 22 for secondary centrifugal solid-liquid separation, the size of the sediment discharge amount of the sediment hole 22, the centrifugal separation effect of the sewage can meet the design requirements of continuous slag discharge of the slag basin 56 and continuous water discharge of the lower water outlet pipe 72 as long as the flow of the discharged water of the control valve II 71 is controlled, and after the sediment in the sedimentation cylinder 25 is deposited to the set height, the control valve I31 is opened at regular time to discharge the sediment out of the machine from the slag discharge pipe 32.

Claims

1. A multi-stage disc type sedimentation separator comprises a frame, wherein a casing is arranged on the frame, an upper end cover is arranged at the upper end of the casing, an upper bearing seat and a support are arranged on the upper end cover, a motor and a belt transmission device are arranged on the support, a sedimentation cylinder is arranged in the casing, a rotary drum assembly and a rotary drum assembly are arranged in the sedimentation cylinder, the rotary drum assembly is subjected to primary solid-liquid separation, a water inlet system, a drainage system, a deslagging system and a sedimentation cylinder are subjected to synchronous secondary solid-liquid separation, a drainage system and a deslagging system, and the drainage deslagging system is divided into a drainage deslagging system and a lower drainage deslagging: the synchronous solid-liquid separation water inlet and drainage system of the rotary drum assembly and the sedimentation cylinder comprises a closed sedimentation cylinder, rotary drum assemblies are coaxially arranged in an inner cavity of the sedimentation cylinder and are fixed with each other, a cavity is arranged between the sedimentation cylinder and the rotary drum assemblies, and the sewage inlet mechanism inputs original sewage to be separated into the cavities of all discs in the rotary drum assembly; the rotary drum assembly is fixed on the hollow shaft and is driven by the hollow shaft to rotate in the shell, the rotary drum assembly performs primary solid-liquid separation on sewage input into an inner cavity of the rotary drum assembly, and separated sediments flow into the settling cylinder to perform secondary solid-liquid separation.

2. The multi-stage disc-type sedimentation separator according to claim 1, wherein: the upper section of the shell arranged on the frame is a cylindrical pipe, the lower section of the shell is a conical pipe with a large upper part and a small lower part, the upper end of the upper section of the shell is provided with a first outer flange, the lower end of the shell is provided with a lower end cover, the center of the lower end cover is provided with a second central hole, and the cylinder wall of the lower end cover is provided with a drain hole; the settling cylinder is arranged in the casing, the upper section of the settling cylinder is a cylindrical pipe, the lower section of the settling cylinder is a conical pipe with a large upper part and a small lower part, the upper end of the upper section of the settling cylinder is provided with an inner flange and is mutually fixedly connected with an outer flange arranged at the upper end of the top-level rotary drum, the lower end of the settling cylinder is provided with a slag discharging pipe with a diameter larger than that of the hollow shaft, the position of the hollow shaft corresponding to the slag discharging pipe is provided with a shaft sleeve with a diameter larger than that of the hollow shaft, a plurality of supporting plates are arranged between the shaft sleeve and the slag discharging pipe, the inner end of each supporting plate is mutually fixedly connected with the shaft sleeve, the outer.

3. The multi-stage disc-type sedimentation separator according to claim 1, wherein: the water inlet system comprises a hollow shaft and an upper bearing seat communicated and connected with the hollow shaft, a water inlet hole I and a water inlet pipe are arranged on the upper bearing seat, a plurality of water inlet holes II are arranged at the position, corresponding to the water inlet holes, of the hollow shaft at the center, a plurality of water inlet holes III are arranged at the position above a bottom disc of the bottom-stage rotary drum at the middle section of the hollow shaft, and water inlets are formed in the lower ends of the discs in the rotary drums at all.

4. The multi-stage disc-type sedimentation separator according to claim 1, wherein: the drainage and slag discharging system comprises an upper drainage and slag discharging system and a lower drainage and slag discharging system: the upper drainage system comprises that the upper ends of discs in the rotary drums at all levels are provided with water outlets, the upper end of the center of the top rotary drum is provided with a flow guide pipe, the upper end of the flow guide pipe upwards penetrates through the third sealing device and extends into the upper bearing seat to be communicated and connected, the lower side wall of the upper bearing seat is provided with a first water outlet hole and an upper water outlet pipe fixedly connected with the first water outlet hole, and the outer sleeve of each rotary drum at all levels is provided with a plurality of slag outlet; the lower drainage system comprises a hollow shaft at the lower end of the bottom-stage rotary drum, wherein a plurality of water outlet holes II are formed in the hollow shaft, the lower end port of the hollow shaft is arranged in a lower bearing seat with a sealing device, the side wall of the lower end of the lower bearing seat is provided with a water outlet hole III and a lower water outlet pipe fixedly connected with the water outlet hole III, and a control valve II is arranged on the lower water outlet pipe; the lower slag discharging system comprises a slag discharging pipe arranged at the lower end of the settling barrel, the slag discharging pipe penetrates through the sealing device IV downwards and extends into the lower bearing seat, a slag discharging hole is formed in the side wall of the lower bearing seat, a slag discharging pipe fixedly connected with the slag discharging hole is arranged outside the slag discharging hole, and a first control valve is arranged on the slag discharging pipe.

5. The multi-stage disc-type sedimentation separator according to claim 1, wherein: and a drum assembly is arranged in the settling cylinder and is formed by stacking a bottom-stage drum, one or more middle-stage drums and a top-stage drum stage by stage.

6. The multi-stage disc-type sedimentation separator according to claim 5, wherein: the middle-stage rotary drum is composed of an outer sleeve with a diameter smaller than that of a cylindrical pipe of the sedimentation cylinder, a lower disc with a central hole larger than the outer diameter of the inner sleeve and smaller than the inner diameter of the outer sleeve, a flow guide disc, one to a plurality of middle discs, an upper disc, a slag blocking pipe and an inner sleeve with a diameter larger than that of the hollow shaft, the inner sleeve and the outer sleeve are arranged in the same length, the horizontal height of the inner sleeve is about 30-45 degrees higher than that of the outer sleeve, a plurality of water outlets are arranged at the upper end of the lower disc and fixed on the lower end of the inner sleeve, the lower section of the lower disc is provided with the slag blocking pipe, the slag blocking pipe is arranged into a conical pipe with a large upper part and a small lower part, the upper end of the slag blocking pipe is provided with a slag inlet with a certain width away from the outer sleeve, the lower end of the slag, the upper part of the middle disc is provided with a plurality of water inlets III which are fixed on the outer sleeve pipe, and the upper part of the middle disc is provided with a plurality of water outlets III which are fixed on the inner sleeve pipe.

7. The multi-stage disc-type sedimentation separator according to claim 5, wherein: the bottom-stage rotary drum is arranged below the middle-stage rotary drum, the bottom disc replaces a lower disc in the middle-stage rotary drum and is provided with a plurality of upper water outlets I, a plurality of water inlet holes III communicated with the hollow shaft are arranged on an inner sleeve between the upper end of the bottom disc and the upper flow guide disc, and the bottom-stage rotary drum has the same structural arrangement as the middle-stage rotary drum except that the structures are different from the structure of the middle-stage rotary drum; the top-level rotary drum is arranged above the middle-level rotary drum, a top disc in the top-level rotary drum replaces an upper disc in the middle-level rotary drum, a plurality of water inlets III are not arranged, a flow guide pipe with the diameter larger than that of the inner sleeve pipe is arranged above a top layer water outlet at the upper end of the top disc, the lower end of the flow guide pipe is fixed on the top disc, and the top-level rotary drum is identical to the middle-level rotary drum in structure except that the structure arrangement of the top-level rotary drum is different from that of the.

8. The multi-stage disc-type sedimentation separator according to claim 1, wherein: an upper end cover with a central hole I is arranged above the machine shell and is fixedly connected with each other through an outer flange by a bolt, an upper bearing seat is arranged on the upper end cover and is fixedly connected with each other through the bolt, an upper bearing, a first sealing device, a second sealing device and a third sealing device are arranged in the upper bearing seat from top to bottom, a water inlet hole I is arranged on the side wall of the upper bearing seat in the space between the first sealing device and the second sealing device, a water inlet pipe is arranged on the outer wall of the water inlet hole I and is fixedly connected with the outer wall, a water outlet hole I is arranged on the side wall of the upper bearing seat in the space between the second sealing device and the third sealing device, an upper water outlet pipe is arranged on the outer wall of the water outlet hole I and is fixedly connected with the outer wall, a bearing cover is additionally arranged at the upper end of the upper bearing, the motor is provided with a large belt pulley fixed on a main shaft, a lower bearing seat is arranged below a lower end cover of the lower end of the shell and fixedly connected with the lower bearing seat through an outer flange three-purpose bolt, a sealing device IV, a sealing device V, a lower bearing and a sealing device VI are arranged in the lower bearing seat from top to bottom, a slag discharging hole is formed in the side wall of the lower bearing seat between the sealing device IV and the sealing device V, a slag discharging pipe is arranged on the outer wall of the slag discharging hole and fixed with the outer wall, a control valve I is arranged on the slag discharging pipe, a water outlet hole III is arranged on the side wall of the lower end of the lower bearing seat, a lower water outlet pipe is arranged on the outer.

9. The multi-stage disc-type sedimentation separator according to claim 1, wherein: the vibration absorber is characterized in that a rack is arranged below an outer flange at the upper end of the machine shell at a certain interval, a lower supporting frame is arranged below an outer flange III at the upper end of a lower bearing seat at the lower end of the machine shell in the rack at a certain interval, the periphery of the lower supporting frame is fixedly connected with the rack, a plurality of uniformly distributed upper vibration absorbers are arranged between the upper end surface of the rack and the outer flange I, the upper ends of the upper vibration absorbers are fixed on the outer flange I through bolts, the lower ends of the upper vibration absorbers are fixed on the rack through bolts, a plurality of uniformly distributed lower vibration absorbers are arranged between the lower supporting frame and the outer flange III, the upper ends of the lower vibration absorbers.

10. The multi-stage disc-type sedimentation separator according to claim 1, wherein: the hollow shaft is arranged in the center of the rotary drum assembly, the top end of the hollow shaft is provided with a plug, the upper end of the hollow shaft upwards penetrates through the top-stage rotary drum for a certain length and is mutually fixed on each inner sleeve of the center of the rotary drum assembly by a flat key, then the hollow shaft at the upper end upwards sequentially penetrates through the sealing device II, the sealing device I, the upper bearing and the bearing cover from the upper bearing seat, the top end of the hollow shaft is provided with a small belt pulley which is mutually fixed and is driven to rotate by a belt through a motor on a large belt pulley, the hollow shaft between the sealing device I and the sealing device II is provided with a plurality of water inlet holes I, the hollow shaft at the three positions of the water inlet holes arranged on the inner sleeve at the upper end of the bottom disc of the bottom-stage rotary drum is provided with water inlet holes III which are communicated with, And the fifth sealing device, the sixth sealing device and the lower bearing finally enter the lower inner cavity of the lower bearing seat.